Carbon-copy letter-book.



No. 737,035. v'PATBNTBD-AUG'. 25, 1903;

* G. SPENGE.

CARBON COPY LETTER BOOK.

VAPPLIOATION FILED 41 12.10. 1902.

no MODEL.

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V UNITED STATES iatented August 25, 19053.

PATENT OFFICE.

enonen sP E'NoE, or TORONTO, CANADA.

CARBON-COPY LETTER-BOOK."

SPECIFICATION forming part of Letters Patent Ne. 737,035, dated August 25, 1903.

Application filed April 10,- 1902.

To a, whom; itmay concern I V Be it known that I, GEORGE SPENOE, of the city of Toronto, in the county of York, Province of Ontario, Canada, have invented certain new and useful Improvements in Carbon- Oopy Letter-Books, of which the following is, a specification.

My invention relates to that class of letterbook in which copies of letters written may be made and kept by the use of carbon-paper;

and my object is to devise simple, effective,

and convenient means for holding the letter and carbon-sheet in place when the book is being used;

With this object in view my invention consists in the peculiar construction, arrangement, andcombination of parts, substantially as hereinafter more particularly described and then definitely claimed.

Figure 1 is a perspective view of my letterbook, showing a letter-sheet held in position. Fig. 2 is a similar view showing a lettersheet partly removed and showing also the copy. Fig. 3 is .an enlarged perspective detail showing one of thespring-holders with its finger in the position which it assumes when engaged with a letter-sheet. Fig. 4 is a similar viewshowing the holder with its finger in the position it assumes when disengaged.

In the drawings like letters of reference indicate corresponding parts in the different figures.

In Figs. 1 and2, Ais the cover of the book, andB the leaves. l/Vhile afull cover is shown, it must be understood that the only essential part of thecover is that to which are connected the spring-arms C. It may be furtherstatedthat it is notessential that the leaves be permanently bound with the cover, as any detachable form of' binding may be used equally as well. The spring-arms C are secured to the cover, one at each side of the leaves B, preferably by means of rivets, as indicated in Fig. 4, though other means might also be employed. At or near the end of each spring-arm is pivoted a finger D. The springarms and fingers together form what may be $eria1 No. 102.233. (No model.)

of carbon paper, F a sheet of letter-paper,

and G a sheet of blotting-paper.

When it is desired to secure a copy of a letter, asheet of carbon-paper is placed upon one of the leaves of thebook. A letter-sheet is then placed over this and the spring-holders engaged with the upper surface of the letter-- paper. When the letter is written, (preferably with a somewhat hard pen,) a good copy is secured in the book, as shown in Fig. 2.

' When writing it is preferable to keep a sheet of blotting-paper, such as G, beneath the hand to prevent the smudging of the copy. After the letter is written the spring-holders are disengaged, as shown in Fig. 2, andthe letter removed, leaving the copy in the book.

Although it is preferable to use two springholders, as shown, yet a considerable measure of utility could be obtained by the use of one only, in which case it might be preferable to make the finger D somewhat longer than is shown in the drawings.

What I claim as my invention is 1. A carbon-copy letter-book-provided with a cover and copy-leaves, twospring-armsone located at each side of one-half of the cover, each secured at one end to the covenwith its free end adjacent to the back and provided at. said free end with a pivoted finger which may be engaged with,or disengaged from, the

.leaves at each side adjacent to the back, substantially as described.

2. Acarbon-copy letter-book provided with a cover and copy-leaves, 'two spring-arms, one

located at each side of one-half of the cover, limit the outward swing of the finge1',suhstaneach secured at one end to the cover With its tially as described. free end adjacent to the back and provided Toronto, March 31, 1902. at said free end with a pivoted finger which 5 may be engaged With,or disengaged from,the GEORGE SPENCE' leaves at each side adjacent to the back, a In presence ofshoulder being formed on the pivoted end of JOHN G. RIDOUT, the finger and adapted to engage the arm to J. M. VVEBSTER. 

